LEMUR-2-DUNLOP, also known as Lemur-2-Dunlop, is a 3U CubeSat satellite manufactured by SPIREG and owned by Spire. Launched on November 12, 2017, from WLPIS Launch Pad 0A using the Antares 230 launch vehicle, it measures 0.3 meters in length with a diameter of 0.1 meters and spans 0.3 meters. The satellite has a dry mass of 4.6 kg and was launched at the same mass. Equipped with solar cells and batteries for power, LEMUR-2-DUNLOP carries payloads including STRATOS (GPS radio occultation), SENSE (AIS-receiver), and AirSafe (ASD-B payload). The satellite became operational on December 7, 2017, and its shape is described as a box with two panels.